Residents of a county about 70 miles north of New York City are reporting an "unusual odor" in the area and "residue" on their cars, officials say.
The Orange County Government said in a Facebook post Friday that it has not determined a cause.
"Orange County, NY Department of Health has received reports regarding residents smelling an unusual odor and seeing residue on their cars. There is not enough information currently to determine a cause. However, Orange County has Environmental Health staff in the field investigating," the Facebook post reads.
The county is located about six hours from East Palestine, Ohio, where a train carrying toxic chemicals derailed on Feb. 3. In the days after the derailment, a controlled release of chemicals was conducted because of the risk of a major explosion, officials said.
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According to the Facebook post from the Orange County government, the New York State Department of Environmental Conservation is sending a team to investigate the odor and residue.
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The Orange County Fire Services Hazmat team is also investigating the issue and checking local manufacturing businesses for any leaks or releases.
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Officials said there is "no known urgent public health threat."